Bevel gears

[Jeffduc998]

Hello
I am french and I restore a 350 Mark 3. Does anyone have a method of adjusting the bevel gears ?

Thank you

Jeffduc

[Jordan]

https://www.dropbox.com/home?preview=Be ... reasey.pdf

[ducwiz]

Hi Jeff,

here are two downloads, which may help:
https://www.sendspace.com/file/5zojnf
https://www.sendspace.com/file/amuk5y

I suppose you already have the french workshop manual from Revue Mototechnique. If not, I can also provide a link for downloading.

cheers Hans

[ducwiz]

https://www.dropbox.com/home?preview=Bevel+mesh+-+Creasey.pdf

Sorry Jordan, but your link does not work ;o(

Hans

[Bevel bob]

Buy a load of shims, a metric micrometer, and spare circlips and be prepared to do and reedo the job as many times as it takes ,Study the section drawings and be prepared to think you have got it all worked out only to find you are wrong.I found it very usefull to remove the rockers to unload the valve gear and assess any free play.

[themoudie]

Bonjour Jeffduc,

As Bob says and lots of patience. La patience!

Traduction Google de la réponse de Bob

"Achetez une charge de cales, un micromètre métrique et des circlips de rechange et soyez prêt à faire et à recommencer le travail autant de fois qu'il le faut. Étudiez les dessins en coupe du manuel de l'atelier et soyez prêt à penser que vous avez tout réglé, seulement pour découvrir que vous vous trompez. J'ai trouvé très utile de retirer les culbuteurs pour décharger le mécanisme de soupape et évaluer tout jeu libre."

Mes salutations, Bill

[Bevel bob]

And to think I failed French at school 60 years ago, That came out OK !!

[themoudie]

So did I Bob, 50 years ago!

Good health, Bill

[Jordan]

https://www.dropbox.com/home?preview=Bevel+mesh+-+Creasey.pdf

Sorry Jordan, but your link does not work ;o(

Hans

Thanks Hans,

If anyone wants the Creasey article about bevel gear shimming, private message me and I'll send it direct to you.

Jordan

[jbcollier]

Random thoughts:

- Always start from too loose and then slowly move the gears until the play just disappears and the witness marks line up perfectly. I have redone several engines built by others and they just thought they were lucky when there was no play on assembly not realizing the gears were under tension.

- Crank has to be true and carefully shimmed first. The cranks are not strong and too large a crank shim will just "squeeze' the crank out of alignment.

- It is not unusual to have a very slight amount of play appear as the crank is rotated. The crank may be slightly out of round, the gears worn, etc. As long as there is no preload, it's fine.